We're officially a quarter of the way through the 2017 NFL regular season and only one team remains unbeaten -- the Kansas City Chiefs. As a result, Kansas City (4-0) jumps up a spot and sits atop this week's Wildly Important NFL Power Rankings.
While the Chiefs' start is impressive, they've got lots of company in the top half of the rankings. A total of 10 other teams have just one loss so far, including the Atlanta Falcons. Atlanta, the No. 1 team in last week's rankings, drove the length of the field in the closing minutes against Buffalo (3-1), but came up short. The Falcons (3-1) dropped two spots to No. 3 this week.
NFL POWER RANKINGS